Electrotherapeutic apparatus



(No Model.)

G. G. DUKE. ELEOTROTHERAPEUTIG APPARATUS.

No. 603,815. Patented MaylO, 1898.

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UNITED STATES PAT NT OFFICE.

GERVAISE GRAHAM DUKE, OF CHICAGO, ILLINOIS.

ELECTROTHERAPEUTIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 603,815, dated May 10,1898.

7 Application filed December 6, 1897. Serial No. 660,857. (No model.)

To all whom it may concern:

Be it known that I, GERVAISE GRAHAM DUKE, of Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Electrotherapeu- I is electrically connected with oneterminal of a primary battery or other source of electrical supply, theopposite terminal of such battery being provided with an electrodeadapted for contact with some portion of the body of the person beingtreated, whereby a circuit is completed through the body and the jet orjets of liquid directed against the same The invention embraces alsoanimproved construction in a spraying apparatus adapted for therapeuticuses.

I The invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claims.

In the drawings which illustrate certain practical forms in which myinvention may be embodied, Figure 1 is a view, partly in elevation andpartly in section, of a spray-applying device constructed in accordancewith my invention. Fig. 2 is a bottom plan View of the same. Fig. 3 is acentral longitudinal section of another form of spray device having theform of a depurator. Fig. 4. isa view,

partly in section and partly in elevation, of'

an ordinary rose-spray nozzle constructed in accordance with myinvention.

First describing the construction shown in Figs. 1 and 2, A represents acup-shaped casing having a perforated wall or diaphragm A and a marginalflange a, projecting beyond tube is a long rubber tube B, forming anextension thereof.

0 designates an inlet-tube attachedto the casing A, and to which isconnected a rubber tube 0, leading from the source of liquidsupply,which will usually be a receptacle elevated to give the required forceor head. Said casing A is composed of an inner wall of metal A, to whichthe electrical apparatus will be connected, as hereinafter to bedescribed, and an outer covering-wall of insulating material A such as,hard rubber or the like. The inlet-tube C will also be covered by atubular covering 0 of hard rubher or other insulating material. Saidtube is herein shown as provided at its outer end with a shortdetachable tube-section G which fits tightly within the interior of theinlettube 0, and is provided on its outer surface with corrugations bywhich the pipe 0 may be more certainly held in place. Said inlettube Gserves as a handle by which the device maybe manipulated in the usualmanner, and for this purpose is provided with an insulating-covering, asdescribed. I

The diaphragm A is provided with a plurality of minute jet-openings a,by means of which the liquid is applied to the surface'to be treated inthe form of a'plurality of small jets. The outer edge of the marginalflange a is covered by insulating material, herein shown as formed bythe marginal part of the covering-layer A which is extended around saidouter edge, as shown. The insulatinglayer a prevents contact of themetallic part of the casing with the body when said casing 1 is placedagainst the same.

Referring now to the electrical part of the apparatus, D indicates aprimary battery, one

in contact with the body of the person being treated.

The use of the device may be briefly stated as follows: The casing Ahaving been con nected to the battery D, as described, and said casinghaving been applied to the part of the body to be treated water issupplied to afford jets of liquid, and the electrode D of the formherein shown or other form will be brought into contact with the body ofthe person by grasping the handpiece or otherwise, whereby a circuitwill be established from the battery to the casing and from the liquidtherein in the form of spray to the body of the person being treated,thence through the electrodeD to the other terminal of the battery D.

In Fig. 3 my invention is shown as applied to a form of depuratordescribed in Letters Patent of the United States granted to Ellick H.Gollings, No. 517,274, on the 27th day of March, 1894. In said figure, Edesignates the casing, which consists of an outer insulated wall E andan inner metallic lining E andis provided with a marginalinsulating-ring e, which, as herein shown, is made detachable and ofhard rubber or like insulating material. F designates an outlet-tubeformed upon or made a part of the inner lining E of the casing. Gdesignates the inlet-tube, which consists of an outer insulating-covering G and an inner metallic tube G which is in communication at its innerend with the interior of the casing E through a relatively smalldischarge-opening g, which, as herein shown, opens centrally into saidchamber of said casing. Said outlet-tube G is also provided with adetachable corrugated tube section designed for detachment of a flexibleor other tube which leads from the source of liquidsupply.

The parts thus far described are substantially like that of the priorpatent above referred to. The electrical connection with the metallicinterior wall E of the casing of said construction is provided throughthe medium ot'a binding-post F, which is mounted upon and has electricalconnection with the tube F, which latter, as above stated, is attachedto said inner lining E of the casing. Said binding-post is connected bya wire f with one terminal of the primary battery or other source ofcurrent-supply, while the circuit will be completed through the jet fromthe outlet-tube and the body of the patient in the manner described inconnection with Figs. 1 and 2.

In Fig. 4 I have shown my invention as applied to an ordinary rose-spraynozzle. In said figure, II designates the head or casing of the nozzle,which is provided at one end with a flexible rubber supply-tube I,connected with any suitable source of liquid-supply. The outer wall H ofsaid head or casing is perforated in the usual manner, so that theliquidis forced therethrough in small jets. The form of device shown in thisfigure is not designed to act as a depurator like that of the previousfigures, but to be employed merely to throw the liquid against the skinin small streams or jets in the ordinary manner. The

nozzle or outlet end of said spray-nozzle will therefore be held at somedistance from the surface being treated; but in order to prevent thepossibility of contact of a persons body with the metallic portion ofthe nozzle said outer end of the head is provided with an annular ringof insulating material H which, as herein shown, is interiorlyscrew-threaded to have screw-threaded engagement with exteriorscrew-threads on the outer walls of said casing or head H. Theelectrical connection with the metallic portion of the head II isprovided through the medium of a bindingscrew H attached to the nozzle,and the op eration of said device is like that stated in the descriptionof the previously-described devices, the rubber tube I being grasped bythe hand in manipulation of the nozzle and affording insulation betweenthe metallic nozzle and the hand which grasps the tube.

So far as the broad idea of-the feature of applying an electricalcurrent to the body through the medium of a metallic nozzle adapted tothrow a stream or jets of liquid against the body is concerned, I do notwish to be limited to the particular forms of spray device herein shown,as such forms may be varied, and the invention may beapplied tostationary forms of said jet devices as well as to the portable formsthereof herein shown and illustrated. The spray-applying nozzle (shownin Fig. 1) is, however, in itself novel and is herein claimed as part ofmy invention.

I claim as my invention I 1. The combination of an open-ended metalliccasin g provided with a jet orifice or orifices and with a marginalflange of insulating material, an outlet-tube leading from saidcasing'inside of said flange and a primary battery or other source ofelectrical supply, one terminal of which is electrically connected withsaid metallic casing and the other terminal of which is provided with anelectrode.

2. The combination with a metallic casing provided with a perforateddiaphragm and an insulated marginal flange, an outlet-passage openingfrom said casing outside of said diaphragm, and a primary battery orother source of electrical supply, one terminal of which is connectedwith said metallic casing and the other terminal of which is providedwith an electrode.

3. An open-ended casingprovided adjacent to its open endwith aperforated diaphragm,

with an inlet-tube opening into said recepta-.

cle behind said diaphragm, and with an outlet-tube leading therefrombetween said diaphragm and the outer margin of the casin g.

In testimony that I claim the foregoing as my invention I alfix mysignature, in presence .of two witnesses, this 3d day of Decem her,

GERVAISE GRAHAM DUKE. Witnesses:

C. CLARENCE PooLE, WILLIAM L. HALL.

